Super-hydrophobic thermoplastic films for packaging

Pending Publication Date: 2021-09-16
CRYOVAC LLC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0024]U.S. Pat. No. 5,407,611 (Viskase) describes films and pouches for packaging and cooking meat and faces the problem of purge formation during cook-in of meat packaged in shrunk pouches. In order to reduce exudation of liquids from the food product during cooking, the packaging films were surface irradiated and corona treated. The combination of a high amount of EVA in the outer layer in contact with the food with those surface treatments improve the adhesion of this film to the product during cooking, thus preventing cook-out of the fluids. This document does not suggest any particular coating of the films.
[0025]The reductio

Problems solved by technology

When the package is opened, the drip is a net weight loss for the retailer or food processor, as it cannot be sold by weight.
Additionally, the presence of exudates in the package reduces its attractiveness, as it is

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Super-hydrophobic thermoplastic films for packaging
  • Super-hydrophobic thermoplastic films for packaging
  • Super-hydrophobic thermoplastic films for packaging

Examples

Experimental program
Comparison scheme
Effect test

examples

[0310]The following resins were used in the manufacture of the films:

TABLE 1TradenameSupplierAcronymEXCEED 4518PAExxonMobilLLDPE1Surpass FPs417-ANOVA ChemicalsLLDPE2EXCEED 1012MAExxonMobilLLDPE310,075ACP Syloid ConcentrateTeknor ColorLDPE1LD-102.74ExxonMobilLDPE2ELVAX 3165DuPontEVA1BYNEL 4125DuPontLLDPE-md1GT4408Westlake ChemicalsLLDPE-md2Aegis H155ZPAdvanSixPA-6E171BEVALCA / KurarayEVOH / EVAL1Eval H171BEVALCA / KurarayEVOH / EVAL2T60-500-119IneosHDPESpheriglass 3000Potters IndustriesGlassmicroparticles

wherein

LLDPE1: Density 0.9180 g / cc, Melt Flow Rate (190° C. / 2.16 kg) 4.50 g / 10 min, Melting point 114.0° C.

LLDPE2: Density 0.917 g / cc, Melt Flow Rate (190° C. / 2.16 kg) 4.50 g / 10 min

LLDPE3: Density 0.912 g / cc, Melt Flow Rate (190° C. / 2.16 kg) 1.00 g / 10 min

LDPE1: Antiblock resin, Ash 9.2%, Density 0.97 g / cc, Melt Flow Rate (190° C. / 2.16 kg) 3.00 g / 10 min, Moisture Content Max 0.20% LDPE2: antiblock resin Ash 2.40%, Density 0.92 g / cc, Melt Flow Rate (190° C. / 2.16 kg) 6.5 g / 10 min, Melting point...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Fractionaaaaaaaaaa
Fractionaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

Thermoplastic films for packaging having a super-hydrophobic sealant surface (0), flexible packages made therefrom and their use in packaging products, especially food products are described. These packages are characterized by optimal performances, especially in terms of seal strength, recovery of the packaged product and prevention of drip formation.

Description

[0001]The present invention relates to thermoplastic films for packaging having a super-hydrophobic sealant surface, to flexible packages made therefrom and to their use in packaging products, especially food products. These packages are characterized by optimal performances, especially in terms of seal strength, recovery of the packaged product and prevention of drip formation.BACKGROUND ART[0002]Packaging of flowable products, in particular of flowable food products, in thermoplastic flexible containers, such as pouches, is well known and appreciated in the market.[0003]Flowable products include for instance low viscosity fluids (e.g., juice and soda), high viscosity products (e.g., tomato paste concentrate, hazelnut spread, peanut butter, condiments and sauces), fluid and solid admixtures (e.g., soups and vegetables in brine), gels, powders and powdered materials.[0004]Pouches may be manufactured by different process, in particular by Vertical form Fill Seal process (VFFS process...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B65D65/42B65D75/30B65D81/20
CPCB65D65/42B32B27/08B65D81/2023B65D75/30B32B27/20B32B27/306B32B27/32B32B27/34B32B27/36B32B2250/24B32B2255/10B32B2255/20B32B2264/025B32B2264/10B32B2264/101B32B2264/102B32B2264/104B32B2264/108B32B2307/31B32B2307/73B32B2439/46B32B2439/70B65D2565/387B65D75/002B65D75/12B65D75/20Y02W30/80B32B2264/501B32B2264/301B32B2250/02
Inventor FORLONI, ROBERTODONG, XIN
Owner CRYOVAC LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap